Finding the Fourth Proportional to 861,703.80, 1,292,555.70 and 861,703.80
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Solution
The fourth proportional to 861,703.80, 1,292,555.70 and 861,703.80 is: 1,292,555.70
Step by Step Solution
- Step 1: Write the proportion equation
861,703.80 : 1,292,555.70 = 861,703.80 : x - Step 2: Convert to fraction form
861,703.80/1,292,555.70 = 861,703.80/x - Step 3: Cross multiply
861,703.80x = 1,292,555.70 × 861,703.80 - Step 4: Simplify right side
861,703.80x = 1,113,800,158,401.66 - Step 5: Solve for x
x = 1,113,800,158,401.66/861,703.80 - Step 6: Final answer
x = 1,292,555.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.